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<h2 align="center">Jim's Page</h2>
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<h4 align="center">&nbsp;</h4>
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<p align="center">Chess IQ Test, Version 3</p>
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<p align="center">by Jim Monaghan</p>
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<p align="center"><font size="2">&nbsp;</font></p>
<p><font size="2">&nbsp;</font><a href="iq3.zip"><font size="2">Download
the IQ3 Test</font></a></p>
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<p>&nbsp;</p>
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<h4>Tactical IQ3 Test for Chess Programs</h4>
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<p><font face="Helvetica,Arial" size="2">This test is based on a test
suite from the master section of Livshits' book
"Test Your Chess IQ". It has been debugged and improved. (Refer to the
</font><a href="iq.html"><font size="2">previous IQ page
</font></a><font face="Helvetica,Arial" size="2">for detailed
explanations.) The positions are carefully balanced with medium to
hard examples. The recent changes:
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<ul>
  <font face="Helvetica,Arial" size="2"> <li>I dropped the "easy"
positions solvable in 4 ply or less </li>
  <li>I dropped the "hard" positions requiring 12 ply or more </li>
  <li>I dropped the "avoid move" positions due to their negative focus</li>
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<p>
<font face="Helvetica,Arial" size="2">Originally there were 360
positions; this has been reduced to 195. The test as
presented here is intended to estimate the tactical strength of chess
engines.
The test duration is 32.5 minutes. Run the test on a chess engine at 10
seconds
per position, note the percentage score achieved and calculate the
engine's IQ3
score:
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<p><b><font face="Arial" size="2">IQ3 score = (percent_correct x 6.7) +
1971</font></b></p>
<p><font face="Arial" size="2">The scoring range of the test suite is
from 1971 to 2641</font></p>
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<p>&nbsp;</p>
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<h4>Information and Improvements</h4>
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<p><font face="Helvetica,Arial" size="2">If you run the test and would
like to share your results please send them along.
If you find any alternative solutions or questionable ones please send
this data
so the test can be improved. My thanks to the posters at CCC and the WB
forum
for pointing out errors and omissions. Enjoy the test.
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